American Express · Consumer Disputes
Reason code C05: Goods or Services Cancelled
C05 covers charges for orders or services the cardmember says they cancelled before fulfillment. The claim is that a valid cancellation was communicated and the merchant billed, or kept the money, anyway.
Issuer filing window
typically 120 days from the charge date
Merchant response window
typically 20 days to respond
Why C05 chargebacks happen
- A cancellation request arrived after the order entered fulfillment and the two events raced each other.
- Support confirmed the cancellation but the ERP or billing system never executed it.
- The customer cancelled a service mid-term and disputes the full charge instead of a prorated one.
- Cancellation required a specific channel (phone, portal) that the customer never used, but they believe an email was enough.
- A pre-order or backorder ran long and the customer's cancellation was ignored while the item finally shipped.
How to fight a C05 chargeback
- Show no valid cancellation was received before shipment or service delivery, with timestamps from your ticketing and order systems.
- If the order shipped before cancellation, provide the fulfillment timeline and your disclosed cutoff policy, plus the option you offered for return.
- Submit your cancellation terms as agreed at purchase, including any fees or notice periods, and evidence the customer accepted them.
- Provide proof that services were actually rendered up to the cancellation date if the dispute covers a period already delivered.
How to prevent C05 chargebacks
- Offer self-service cancellation that takes effect instantly, since queued cancellation requests are where these disputes breed.
- Sync cancellations to billing and fulfillment in real time so a confirmed cancellation can never bill again.
- Send written confirmation for every cancellation with an effective date and any final-charge explanation.
- State cancellation cutoffs clearly at checkout, especially the point after which an order can only be returned, not cancelled.
Frequently asked questions
- The item shipped an hour before the customer cancelled. Who wins?
- Usually the merchant, if you can prove the shipment predated the cancellation request and you offered a standard return path. Provide both timestamps and your shipping cutoff policy.
- How is C05 different from C28?
- C05 concerns cancelling a specific order or service, while C28 is specifically about recurring billing the customer says they cancelled. Recurring plans that keep charging after cancellation belong under C28.
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